use filepath.Match instead of regex

pkg/util/fs_util.go

@@ -26,7 +26,6 @@ import (
 	"net/http"
 	"os"
 	"path/filepath"
-	"regexp"
 	"strings"
 	"syscall"
 	"time"
@@ -696,7 +695,7 @@ func HasFilepathPrefix(path, prefix string, prefixMatchOnly bool) bool {
 	}
 
 	for index := range prefixArray {
-		m, err := regexp.MatchString(prefixArray[index], pathArray[index])
+		m, err := filepath.Match(prefixArray[index], pathArray[index])
 		if err != nil {
 			return false
 		}

pkg/util/fs_util_test.go

@@ -66,6 +66,7 @@ func Test_DetectFilesystemWhitelist(t *testing.T) {
 		{"/sys", false},
 		{"/var/run", false},
 		{"/etc/mtab", false},
+		{"/tmp/apt-key-gpghome", true},
 	}
 	actualWhitelist := whitelist
 	sort.Slice(actualWhitelist, func(i, j int) bool {